This leon3 design is tailored to the Avnet Spartan3 Eval board
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Design specifics:
* System reset is mapped to the SW[4]
* The console UART (UART 1) is connected to the P3 DB-9 connector.
* The JTAG DSU interface is enabled and works well with
GRMON and Xilinx parallel cabel III or IV .
* The GRETH core is enabled and runs without problems at 100 Mbit.
Ethernet debug link is enabled, default IP is 192.168.0.51.
* The SRAM (1 Mbyte) is attached using a modified version
of the leon2 memory controller (mctrl_avnet). This is
because the address bus is work based rather than byte based
and needs to be shifted 2 steps. It is possible to start
grmon with -normw for better performance. The byte-enable
strobes for the sram are connected and read-modify-write
is not needed.
* The Avnet flash/sram/sdram mezzanine (ADS-FLASH-DAU-G) is
supported. It provides 16 Mbyte flash and 1 Mbyte additional
sram. The sdram is attached but does not work - if somebody
can fix this then let me know. The FLASH memory can be
programmed using GRMON.
* The LEON3 processor can run up to 40 - 50 MHz on the board
in the typical configuartion.
* Sample output from GRMON info sys is:
$ grmon -eth -u -normw
GRMON LEON debug monitor v1.1.19b
Copyright (C) 2004,2005 Gaisler Research - all rights reserved.
For latest updates, go to http://www.gaisler.com/
Comments or bug-reports to support@gaisler.com
ethernet startup.
GRLIB build version: 2125
initialising .............
detected frequency: 40 MHz
Component Vendor
LEON3 SPARC V8 Processor Gaisler Research
AHB Debug JTAG TAP Gaisler Research
SVGA frame buffer Gaisler Research
Simple 32-bit PCI Target Gaisler Research
GR Ethernet MAC Gaisler Research
LEON2 Memory Controller European Space Agency
AHB/APB Bridge Gaisler Research
LEON3 Debug Support Unit Gaisler Research
Generic APB UART Gaisler Research
Multi-processor Interrupt Ctrl Gaisler Research
Modular Timer Unit Gaisler Research
Keyboard PS/2 interface Gaisler Research
Keyboard PS/2 interface Gaisler Research
Use command 'info sys' to print a detailed report of attached cores
grlib> inf sys
00.01:003 Gaisler Research LEON3 SPARC V8 Processor (ver 0x0)
ahb master 0
01.01:01c Gaisler Research AHB Debug JTAG TAP (ver 0x0)
ahb master 1
02.01:063 Gaisler Research SVGA frame buffer (ver 0x0)
ahb master 2
apb: 80000600 - 80000700
clk0: 25.17 MHz
03.01:012 Gaisler Research Simple 32-bit PCI Target (ver 0x0)
ahb master 3
04.01:01d Gaisler Research GR Ethernet MAC (ver 0x0)
ahb master 4, irq 12
apb: 80000b00 - 80000c00
edcl ip 192.168.0.51, buffer 2 kbyte
00.04:00f European Space Agency LEON2 Memory Controller (ver 0x1)
ahb: 00000000 - 20000000
ahb: 20000000 - 40000000
ahb: 40000000 - 80000000
apb: 80000000 - 80000100
32-bit prom @ 0x00000000
32-bit static ram: 2 * 1024 kbyte @ 0x40000000
01.01:006 Gaisler Research AHB/APB Bridge (ver 0x0)
ahb: 80000000 - 80100000
02.01:004 Gaisler Research LEON3 Debug Support Unit (ver 0x1)
ahb: 90000000 - a0000000
AHB trace 256 lines, stack pointer 0x401ffff0
CPU#0 win 8, hwbp 2, itrace 256, V8 mul/div, lddel 1
icache 1 * 4 kbyte, 32 byte/line
dcache 1 * 4 kbyte, 32 byte/line
01.01:00c Gaisler Research Generic APB UART (ver 0x1)
irq 2
apb: 80000100 - 80000200
baud rate 38400, DSU mode
02.01:00d Gaisler Research Multi-processor Interrupt Ctrl (ver 0x3)
apb: 80000200 - 80000300
03.01:011 Gaisler Research Modular Timer Unit (ver 0x0)
irq 8
apb: 80000300 - 80000400
8-bit scaler, 2 * 32-bit timers, divisor 40
04.01:060 Gaisler Research Keyboard PS/2 interface (ver 0x1)
irq 4
apb: 80000400 - 80000500
05.01:060 Gaisler Research Keyboard PS/2 interface (ver 0x1)
irq 5
apb: 80000500 - 80000600
grlib> fla
Intel-style 32-bit (2x16-bit) flash
Manuf. Intel Intel
Type MT28F640J3 MT28F640J3
Device ID d1210850e2c6c0c1 91210930e2c6c0c1
User ID ffffffffffffffff ffffffffffffffff
2 x 8 Mbyte = 16 Mbyte total @ 0x00000000
CFI information
flash family : 1
flash size : 64 Mbit
erase regions : 1
erase blocks : 64
write buffer : 32 bytes
region 0 : 64 blocks of 128 Kbytes
grlib> lo ~/examples/soft/v8/dhry.exe
section: .text at 0x40000000, size 47568 bytes
section: .data at 0x4000b9d0, size 2408 bytes
total size: 49976 bytes (30.4 Mbit/s)
read 245 symbols
entry point: 0x40000000
grlib> run
Execution starts, 400000 runs through Dhrystone
Microseconds for one run through Dhrystone: 15.2
Dhrystones per Second: 65573.8
Dhrystones MIPS : 37.3
Program exited normally.